2.2.6.1.2.5 PropertyRestriction Structure

The PropertyRestriction structure is used to compare the value of a property with a constant.

The PropertyRestriction structure has the following format.

0	1	2	3	4	5	6	7	8	9	1 0	1	2	3	4	5	6	7	8	9	2 0	1	2	3	4	5	6	7	8	9	3 0	1
RestrictionType
RelOp
PropertyType																PropertyID
Reserved
PropValueNum
PropValue (variable)

RestrictionType (4 bytes):  This field specifies the type of restriction and MUST be set to RES_PROPERTY (0x00000004) for the PropertyRestriction structure.

RelOp (4 bytes):  This field specifies the relational operator to be used in the comparison. The value MUST be one of the following.

Relational operator name	Value	Meaning
RELOP_LT	0x00000000	The condition evaluates to TRUE if the value of the property is less than the constant value.
RELOP_LE	0x00000001	The condition evaluates to TRUE if the value of the property is less than or equal to the constant value.
RELOP_GT	0x00000002	The condition evaluates to TRUE if the value of the property is greater than the constant value.
RELOP_GE	0x00000003	The condition evaluates to TRUE if the value of the property is greater than or equal to the constant value.
RELOP_EQ	0x00000004	The condition evaluates to TRUE if the value of the property is equal to the constant value.
RELOP_NE	0x00000005	The condition evaluates to TRUE if the value of the property is not equal to the constant value.

PropertyType (2 bytes):  This field specifies the type of the property. Valid types are specified in section 2.2.6.1.3.

PropertyID (2 bytes):  This field specifies the property ID of the property.

Reserved (4 bytes):  The application can fill this field with any value when writing the stream. The application MUST ignore the value of this field when reading the stream.

PropValueNum (4 bytes):  This field MUST be set to 0x00000001.

PropValue (variable):  A PropertyValue structure, as specified in section 2.2.6.1.4, that specifies the value to be compared.